/*
 * Copyright (c) 2011, Yawning <yawninglol at gmail.com>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   * Neither the name of the Mew Developers nor the
 *     names of its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
 * THE POSSIBILITY OF SUCH DAMAGE.
 */

package yawning.mew.sim;

import java.util.ArrayList;
import java.util.List;

import yawning.mew.character.CharacterModel;
import yawning.mew.character.CharacterModel.AttackResult;

public class SimulationEventTargetSwing extends SimulationEvent {
	private CharacterModel mCharacterModel;
	private int mAttackerLevel;
	private double mTargetSwingInterval;
	private double mTargetSwingIntervalMult = 1.0;
	private int mTargetSwingDamage;
	private List <TargetSwingCallback> mTargetSwingCallbacks;
	private boolean mTargetSwingForceStopped;

	public interface TargetSwingCallback {
		public void onTargetSwing(AttackResult result, int baseDamage, int Actualdamage);
	}

	public SimulationEventTargetSwing(SimulationEngine su, SimulationTarget target) {
		super(su);

		mTargetSwingCallbacks = new ArrayList<TargetSwingCallback>();

		mAttackerLevel = target.getTarget().getLevel();
		mTargetSwingInterval = target.getTarget().getSwingInterval();
		mTargetSwingDamage = target.getTarget().getSwingDamage();

		// Start the mob swing timer.
		if (mTargetSwingInterval > 0 && mTargetSwingDamage > 0) {
			schedule(Double.MAX_VALUE, mTargetSwingInterval * mTargetSwingIntervalMult);
		}
	}

	@Override
	public void onTick() {
		AttackResult result = mCharacterModel.getMobWhiteResult();

		int baseDamage = mTargetSwingDamage;

		if (result == AttackResult.CRIT) baseDamage *= 2;

		double damage = baseDamage;

		double mult = 1.0;
		mult *= 1 - CharacterModel.calculateArmorDR(mCharacterModel.getArmor(), mAttackerLevel);	// Armor
		mult *= mCharacterModel.getIncPhysicalDamageMult();	// Damage reduction buffs/debuffs/talents.

		damage *= mult;

		for (TargetSwingCallback callback : mTargetSwingCallbacks) {
			callback.onTargetSwing(result, baseDamage, (int) Math.round(damage));
		}

		setTickInterval(mTargetSwingInterval * mTargetSwingIntervalMult);
	}

	public void addTargetSwingCallback(TargetSwingCallback callback) {
		mTargetSwingCallbacks.add(callback);
	}

	public void multiplyAttackSpeed(double mult) {
		mTargetSwingIntervalMult *= mult;
	}

	public void setCharacterModel(CharacterModel model) {
		mCharacterModel = model;
	}

	public void start() {
		if (!isUp() && !mTargetSwingForceStopped) schedule(Double.MAX_VALUE, mTargetSwingInterval * mTargetSwingIntervalMult);
	}

	public void stop() {
		cancel();
	}

	public double getInterval() {
		return mTargetSwingInterval;
	}

	public int getBaseDamage() {
		return mTargetSwingDamage;
	}

	public void setInterval(double interval) {
		mTargetSwingInterval = interval;
	}

	public void setBaseDamage(int damage) {
		mTargetSwingDamage = damage;
	}

	public void setEnable(boolean enabled) {
		mTargetSwingForceStopped = !enabled;
		if (enabled) start(); else stop();
	}
}
